Evidence for a very young age of F stars with extrasolar planets

Authors
Suchkov, AA Schultz, AB
Citation
Aa. Suchkov et Ab. Schultz, Evidence for a very young age of F stars with extrasolar planets, ASTROPHYS J, 549(2), 2001, pp. L237-L240
Citations number
24
Categorie Soggetti
Space Sciences
Journal title
ASTROPHYSICAL JOURNAL
ISSN journal
0004637X → ACNP
Volume
549
Issue
2
Year of publication
2001
Part
2
Pages
L237 - L240
Database
ISI
SICI code
0004-637X(20010310)549:2<L237:EFAVYA>2.0.ZU;2-7
Abstract
We assess the age of nine planet-bearing (PB) F stars by comparing their me tallicity, Hp variability, brightness anomaly, and location in the color-ma gnitude diagram with the same parameters for the Hyades and field F stars. Combined evidence from these parameters suggests that the age of our PB F s tars is not very much different from the age of the Hyades, similar to 700 Myr, and is much younger than the ages of cooler, solar-type PB stars found in a number of recent studies.